Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Digestive system - liver, LIVE R (HEPAR) - Largest gland of body. W...

LIVE R (HEPAR) - Largest gland of body. Weighing 1.6 kg. Form 1/40 of the body weight. Bio-chemical laboratory. Bussiest part in whole river of life. Dark reddish brown

Phylem protozoa, how does these phylem parasites????

how does these phylem parasites????

Explain the term bleeding, Bleeding Bleeding from injury to small blood...

Bleeding Bleeding from injury to small blood vessels pushed along the lateral wall of expanding maxillary sinus should be contained by bone wax or electrocautery rather than cr

Explain herbicide tolerant crops in evolutionary way, Explain Herbicide to...

Explain Herbicide tolerant crops in Evolutionary way Increased use of herbicide can result in increase in development of weed resistance to that herbicide either through

frog, what is the xternal & internal respiration in fro

what is the xternal & internal respiration in frog

What is asexual reproduction, What is Asexual Reproduction? Asexual re...

What is Asexual Reproduction? Asexual reproduction occurs in prokaryotes through the process of binary fission. Primitive eukaryotes and plants also reproduce by various t

General procedure of titration - nutritional biochemistry, Define General ...

Define General procedure of titration - Nutritional  Biochemistry? In general a titration requires that we add precise amounts of the known titrant to the unknown analyte or ti

Complete metamorphosis, Complete Metamorphosis In all Endopterygota i...

Complete Metamorphosis In all Endopterygota insects, where wings and other structures develop internally, (in invaginate imaginal epidermal pockets) such as beetles, wasps, b

Explain the fistulative surgery - endodontic surgery, Explain the Fistulati...

Explain the Fistulative surgery - Endodontic Surgery = (Incision and drainage) 1 Cortical trephination 2 Decompression 3

Nursing assessment of thalassemia patient, Nursing Assessment  If you ...

Nursing Assessment  If you observe a child of thalassemia major you can identify the following clinical  manifestations:  Anaemia with haemoglobin level of 3 to 8 gm per ce

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd